. >>> an advocate for stricter gun laws, now michael bloomberg is helping vice president's task force to curb violence. >> joe biden not a shrinking violet, particularly when it comes to crime and the gun problem in this country and the number of murders. >> bloomberg is pushing for criminal background checks on all gun sales, not just gun dealers and called for renewal of the assaults ban, similar to the one in 1994 that expired ten years later. >>> attorneys for casey anthony will be in a courtroom. he is appealing four convictions after her daughter kaleigh first reported missing. she was acquitted in 20 11. casey anthony is not expected to attend today's hearing. >>> the death of a chicago man who died before he could collect a winning lottery ticket has been ruled a homicide. the chief medical examiner said there was a lethal amount of cyanide in the man's system. he won $1 million in a lottery ticket. the check was issued on july 19th. khan died the next night before he could cash the check. >> wow. >>> robert griffin iii headed to florida to see a specialist after tests on his